气候变化领域集成服务门户(CCPortal): Linked canopy, climate, and faunal change in the Cenozoic of Patagonia

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DOI	10.1126/science.1260947
	Linked canopy, climate, and faunal change in the Cenozoic of Patagonia
	Dunn R.E.; Strömberg C.A.E.; Madden R.H.; Kohn M.J.; Carlini A.A.
发表日期	2015
ISSN	0036-8075
起始页码	258
结束页码	261
卷号	347 期号:6219
英文摘要	Vegetation structure is a key determinant of ecosystems and ecosystem function, but paleoecological techniques to quantify it are lacking. We present a method for reconstructing leaf area index (LAI) based on light-dependent morphology of leaf epidermal cells and phytoliths derived from them. Using this proxy, we reconstruct LAI for the Cenozoic (49 million to 11 million years ago) of middle-latitude Patagonia. Our record shows that dense forests opened up by the late Eocene; open forests and shrubland habitats then fluctuated, with a brief middle-Miocene regreening period. Furthermore, endemic herbivorous mammals show accelerated tooth crown height evolution during open, yet relatively grass-free, shrubland habitat intervals. Our Patagonian LAI record provides a high-resolution, sensitive tool with which to dissect terrestrial ecosystem response to changing Southern Ocean conditions during the Cenozoic. © 2015, American Association for the Advancement of Science. All rights reserved.
英文关键词	Cenozoic; ecosystem function; forest canopy; fossil record; habitat type; latitude; leaf area index; paleoecology; vegetation structure; Article; canopy; cell structure; Cenozoic; Chattian; climate; density gradient; epidermis cell; forest; global climate; habitat; Lutetian; microscopy; Middle Miocene; nonhuman; plant leaf; priority journal; scrub; South America; sunlight; Upper Eocene; vegetation; anatomy and histology; animal; cell shape; cell size; climate change; Costa Rica; cytology; ecosystem; evolution; forest; fossil; grassland; mammal; plant; plant epidermis; plant leaf; time; tooth crown; Patagonia; Mammalia; Animals; Biological Evolution; Cell Shape; Cell Size; Climate Change; Costa Rica; Ecosystem; Forests; Fossils; Grassland; Mammals; Plant Epidermis; Plant Leaves; Plants; South America; Time; Tooth Crown
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243584
作者单位	Department of Biology, Burke Museum of Natural History and Culture, University of Washington, Seattle, WA 98195, United States; Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, United States; Department of Geosciences, Boise State University, Boise, ID 83725, United States; Paleontología de Vertebrados, Universidad Nacional de La Plata, Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), La Plata, Argentina
推荐引用方式 GB/T 7714	Dunn R.E.,Strömberg C.A.E.,Madden R.H.,et al. Linked canopy, climate, and faunal change in the Cenozoic of Patagonia[J],2015,347(6219).
APA	Dunn R.E.,Strömberg C.A.E.,Madden R.H.,Kohn M.J.,&Carlini A.A..(2015).Linked canopy, climate, and faunal change in the Cenozoic of Patagonia.Science,347(6219).
MLA	Dunn R.E.,et al."Linked canopy, climate, and faunal change in the Cenozoic of Patagonia".Science 347.6219(2015).